Leg and knee zone immobilizer



FIG. 1 is a perspective view illustrating the front and a first side of my new design for a leg and knee zone immobilizer;

FIG. 2 is a perspective view illustrating the rear and a second side thereof;

FIG. 3 is a top view thereof; and

FIG. 4 is a bottom view thereof. 

The ornamental design for a leg and knee zone immobilizer, as shown. 